Categories twitter-es RT @pahowho: #DYK ❓: Recirculating indoor air 💨 can increase the spread of the virus 🦠 that causes #COVID19 Goodadmin - 15:52, 3 de enero de 2022291 0 RT @pahowho: #DYK ❓: Recirculating indoor air 💨 can increase the spread of the virus 🦠 that causes #COVID19 Good ventilation can protect y… 0